Meech 971 Operating Manual
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Meech 971 Operating Manual

Shockless dc ionising bar
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Operating
Manual
Model 971
Shockless DC Ionising Bar

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Summary of Contents for Meech 971

  • Page 1 Operating Manual Model 971 Shockless DC Ionising Bar...

  • Page 3: Table Of Contents

    Products shown in this document may be covered by one or more patents, patents applied for and/or registered designs and/or trade marks. For further information please refer to our Head Office or visit www.meech.com. © Meech Static Eliminators Ltd., 26.10.17...

  • Page 5: Introduction

    The extruded profile has been designed to enhance emitter life and allow easy cleaning while giving linear strength. The profile incorporates “T” slots on three faces to provide universal mounting points. The Meech 971 is powered by any of the range of Meech Pulsed DC Controllers.

  • Page 6: Unpacking And Inspection

    Features and Benefits of the 971 Overall look The profile of the 971 bar is rounded, with minimal dirt traps, making it useful for cleanroom applications. The bar has good rigidity, allowing it to span wide widths. Mounting is by M4x20 T bolts in a slot at the rear of the bar.
  • Page 7 Upstand The upstand between the nozzles is a vital feature of the 971 bar. By increasing the tracking distance between positive and negative pins, the upstand helps maintain good performance even when the bar is contaminated. Emitter Assembly The emitter assembly is a one piece moulding with a 1mm diameter sharp titanium emitter pin.
  • Page 8 Air Outlets Air Outlets Whilst the long range performance of the 971 is excellent, some installations can require the use of air assistance to get full control of the static. This can either be by increased speeds of decay and/or by increased ionisation range. Air outlets either side...
  • Page 9 Each 971 bar is supplied with a 6mm push-fit air fitting pre-installed. Increased Voltage Handling Internal changes to the bar ensure absolute reliability at the higher voltages supplied by the 977CM.

  • Page 10: Installation

    Installation The 971 Bar should be located in the most convenient position so that the pins of the bar are directed towards the target area. The bar should be positioned to give an unrestricted path for the ions to travel to the target area. It should typically be between 300mm and 800mm away from the target area.
  • Page 11 The shockless emitter pins produce ions of positive and negative polarity. These, because of the product’s unique design, propel themselves away from the emitter points towards the target area. Optimum static elimination can be achieved by adjustment of the “Rate” (frequency of pulsing) and the “Balance”...
  • Page 12 I.E. a) If the static charge is known to be positive the balance should be adjusted towards negative on the controller. b) If the static charge is known to be negative the balance should be adjusted towards positive on the controller.

  • Page 13: Maintenance

    Maintenance Ionisers require periodic cleaning. During normal operation, dirt will build-up on the emitter pins and upon the body of the ioniser. This will cause a reduction in performance. Typically, weekly cleaning is sufficient. However, equipment used in some heavy contamination areas, such as gravure printing or where plastic fumes are present, may require daily cleaning.
  • Page 14 Let dry for a minute before turning back on. If on inspection, the emitter pins of the Bar are very dirty or damaged they should be replaced. Replacement emitters are available from Meech Static Eliminators Ltd. or your local Meech Distributor.

  • Page 15: Fault Finding

    Fault Finding Tests must be completed by a qualified electrical engineer. If in doubt contact the Meech head office or your local distributor. CAUTION: Whilst no danger to personnel exists, it is essential that any high voltage ionising equipment, makes no contact with water or water based fluids.
  • Page 16 Disconnect all bars from the controller. Reconnect the supply and switch on the unit.
  • Page 17 Using a high voltage probe (RS type 610 281) and meter (RS type 610 950) measure the voltage on each of the output sockets. The reading should be at minimum power 4kV and at maximum power 8kV Having checked the power supply, reconnect one 971 Bar.
  • Page 18 Using a high voltage probe (RS 610 281) and meter (RS 610 590) measure the voltage on the pins of the bar. This voltage should be between 3 and 6kV. If there is more than one bar to test, disconnect the first item and repeat the above steps.

  • Page 19: Repairs And Warranty

    Repairs And Warranty The Meech 971 Bar is warranted by Meech Static Eliminators Ltd. to the original purchaser against defects in material and workmanship for one year after purchase. Should any malfunction occur, please return the bar directly to Meech Static Eliminators Ltd.

  • Page 20: Technical And Construction

    Technical and Construction Dimensions (cross section) 63mm x 72mm Maximum length 3900mm Operating Range 150mm – 750mm Weight 1.2 kg/m Construction ABS Plastic FR Mounting ‘T’ Slot with M4 x 20 studs 2000mm HT in flexible plastic conduit, longer Cable length available.

  • Page 24: Meech Static Eliminators Ltd

    Meech International Meech Static Eliminators USA Inc Meech Elektrostatik SA Meech CE 2 Network Point 2915 Newpark Drive Kaiserbaracke 166 Gábor László utca 2 Range Road, Witney Norton, OH 44203 B-4780 St.Vith Budapest 1041 Belgium Hungary OX29 0YN, UK Tel: +44 (0)1993 706700 Tel: +1 330 564 2000 / 1 800 232 4210 Tel.: +49 (0)6555 3733 399...

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